It does not show up in arp -a


On Thu, Aug 14, 2014 at 1:41 PM, David Gibbs <david@xxxxxxxxxxxx> wrote:

On 8/14/2014 11:51 AM, Jeff Crosby wrote:
I'm 99% sure the IP address is not in use on our LAN, but
I want to be 100% sure.

I'm not sure this is the best way ... but give it a try.

First ping the IP. It may or may not respond.

Then run 'arp -a' to see if the IP is in the arp table. This should also
tell you the mac address of the device so you can at least determine it's
manufacturer and/or model.


IBM i on Power Systems: For when you can't afford to be out of business!

I'm riding a metric century (100 km / 62 miles) in the 2015 American
Diabetes Association's Tour de Cure to raise money for diabetes research,
education, advocacy, and awareness. You can make a tax deductible donation
to my ride by visiting My goal is $5500
but any amount is appreciated.

See where I get my donations from ... visit for an interactive map
(it's a geeky thing).
This is the PC Technical Discussion for IBM i (AS/400 and iSeries) Users
(PcTech) mailing list
To post a message email: PcTech@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
or email: PcTech-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.